I'm a lawyer. I work in real estate. I have spent my career exposed to the people who make fortunes out of real estate development. A good proportion (though not all) of them are vile, amoral pieces of lying excrement.
Trump personifies those amoral horrors. Lying, for him, is nothing if it gets him what he wants. Hell, it's nothing for him in any event.
It would be nice to think he'll have his comeuppance but experience suggests otherwise, sadly.
Could there be any greater conceit, than for someone to believe that the universe has to be simple enough for them to be able to understand it ?